An image-forming apparatus includes a condensation determiner that determines whether there is a possibility of condensation occurring inside the image-forming apparatus using condensation determination information including a measured apparatus temperature inside the apparatus, a preparation processor that performs a preparation process for executing a print function, and a preparation waiting time setter that sets a preparation waiting time indicating a period of time for performing the preparation process. When the image-forming apparatus is powered and it is determined that there is a possibility of condensation occurring inside the image-forming apparatus, a preparation waiting time is set using the condensation determination information and the preparation process is started. After counting of the preparation waiting time is started, it is determined that a periodically-measured fusing temperature reached a predetermined target temperature, and thereafter, the counted preparation waiting time elapsed, the preparation process is canceled.

Disclosed herein is a substrate cooling unit for use with a duplex aqueous ink jet image forming device. The substrate cooling unit including a first cooling roll. a first transport belt, a second cooling roll positioned downstream of the first cooling roll in a process direction and a second transport belt. The first and second transports belts include a bottom layer of a fiber mesh impregnated with a polydimethylsiloxane, where the fiber mesh is selected from cotton, polyester, and nylon. The first and second transport belts include an optional intermediate adhesive layer and an optional top layer of silicone having an extractable level of less than 4 percent. The substrate cooling unit includes an invertor.

Disclosed herein is a substrate cooling unit for use with a duplex aqueous ink jet image forming device. The substrate cooling unit including a first cooling roll. a first transport belt, a second cooling roll positioned downstream of the first cooling roll in a process direction and a second transport belt. The first and second transports belts include a bottom layer of a fiber mesh impregnated with a polydimethylsiloxane, where the fiber mesh is selected from cotton, polyester, and nylon. The first and second transport belts include an optional intermediate adhesive layer and an optional top layer of silicone having an extractable level of less than 4 percent. The substrate cooling unit includes an invertor.

A printing apparatus includes: a printing section; a print conveyor conveying a medium in the printing section; a constant-speed conveyor conveying the medium at a variable constant conveying speed in a circulation route for duplex printing; a registration roller pair against which the medium to be conveyed to the printing section is caused to abut; and a processor determining a conveyance schedule for the medium based on at least one of a first conveyance route length between a downstream end portion in a conveying direction of the print conveyor and an upstream end portion in the conveying direction of the constant-speed conveyor and a second conveyance route length between a downstream end portion in the conveying direction of the constant-speed conveyor and the registration roller pair, and a medium length in the conveying direction of the medium.

An intermediate unit includes a transportation path provided with a drying unit that accelerates the drying of the medium. The transportation path includes an inlet path, an outlet path, a first branch path, a second branch path, a first junction path, a second junction path, a switch-back type inversion path with a first inversion path and a second inversion path. The first branch path and the second branch path which branch off at a branch point from the inlet path. The first junction path and the second junction path and the outlet path join each other at a junction point. The first branch path and the first junction path and the first inversion path join each other at a first connection point. The second branch path and the second junction path and the second inversion path join each other at a second connection point.

A liquid discharging device is provided that includes: a first head (11) containing a pretreatment liquid, configured to discharge the pretreatment liquid onto a recording medium; a second head (12) disposed downstream of the first head (11) in a conveyance direction of the recording medium, configured to discharge an ink; an exhaust unit (14) disposed upstream of the first head (11) in the conveyance direction, configured to evacuate a gas present between the first head (11) and the recording medium from a downstream side to an upstream side in the conveyance direction; and a housing (30) internally containing the first head (11) and the second head (12), internally or externally containing the exhaust unit (14), and having an opening (32) downstream of the exhaust unit (14) in the conveyance direction.

A cooling device includes a cooling member to absorb heat from a conveyed sheet and a plurality of cooling units to cool the cooling member. Each of the cooling units includes a coolant channel through which a coolant flows and a liquid-cooling device configured to cool the coolant that flows in the coolant channel. The coolant channels are disposed on or inside the cooling member and arranged side by side in a sheet conveyance direction. The coolant channels includes a downstream coolant channel being downstream from at least one of the plurality of coolant channels in the sheet conveyance direction, and an upstream coolant channel being upstream from the downstream coolant channel in the sheet conveyance direction. One of the liquid-cooling devices coupled to the downstream coolant channel has a cooling capacity higher than a cooling capacity of another of the liquid-cooling devices coupled to the upstream coolant channel.

A cooling device includes a cooling member to absorb heat from a conveyed sheet and a plurality of cooling units to cool the cooling member. Each of the cooling units includes a coolant channel through which a coolant flows and a liquid-cooling device configured to cool the coolant that flows in the coolant channel. The coolant channels are disposed on or inside the cooling member and arranged side by side in a sheet conveyance direction. The coolant channels includes a downstream coolant channel being downstream from at least one of the plurality of coolant channels in the sheet conveyance direction, and an upstream coolant channel being upstream from the downstream coolant channel in the sheet conveyance direction. One of the liquid-cooling devices coupled to the downstream coolant channel has a cooling capacity higher than a cooling capacity of another of the liquid-cooling devices coupled to the upstream coolant channel.

A liquid discharge apparatus includes a body and a carriage disposed inside the body. A head is mounted on the carriage. The head discharges ink onto a recording medium and generates ink mist. An ink mist collector includes a fan that generates an air current that circulates in an air flow direction inside the body. A filter collects the ink mist generated by the head. At least one duct adjusts the air flow direction. An encoder is mounted on the carriage. The encoder is disposed downstream from the fan and disposed upstream from the head in the air flow direction.

Provided is a liquid ejection device capable of improving the sealing property of a gap between a main housing and a liquid ejection head while maintaining a position adjustment allowance of the liquid ejection head with respect to the main housing. A main housing has one or more ejection unit protrusion opening into which the liquid ejection unit is inserted downward and protrudes through a gap in a horizontal direction, and covers and internally houses a portion of the liquid ejection head other than the liquid ejection unit. The size of the ejection unit insertion opening is smaller than the size of the ejection unit protrusion opening. The sealing member comes in contact with the outer peripheral portion of the liquid ejection unit in a state where the edge portion of the ejection unit insertion opening is bent.